Yarn-drawing apparatus



Aug. 31, 1926.

VV. EL YWiCDhAIXES ETFQL YARN DRAWING APPARATUS Filed April 21; 1925 2Sheets-$iwet 1 Aug 31 1926. 1,598,460

W. E. THOMAS ET Al.

YARN DRAWING APPARATUS Filed April 21, 1925. 2 Sheets-Sheet 2 PatentedAug. 31, 1926.

UNITED. STATES 1,598,46tv' PATENT OFFICE.

WILLIAM- EWART THOMAS AND GREENWOOD HEAP, OF HALIFAX, ENGLAND, AS-SIGNORS TO JOHN CBOSSLEY & SONS, LIMITED, F HALIFAX, ENGLAND.

YARN DBLAWING APPARATUS.

Application filed April 21, 1925, Serial No. 24,742, and in GreatBritain February 12, 1925.

Our invention relates to improvements in or connected-with gill-boxes,drawing boxes and like apparatus usedin wool and Worsted yarn'manufacture, of the kind comprising a front pair of fluted rollers anda back pair offluted rollers, the former'of'which rotate at a greaterspeed than the'latter so as to draw out the wool as it proceeds from oneto the other, and a number of so-called fallers arranged betweenthesaid'pairs of fluted rollers and comprising bars carryinganumber of pinsthrough which the wool, as it is fed by the fluted rollers, passes andhas its fibres straightened out, the fallers being caused to movehorizontally between the pairs of rollers and at the end of their courseknocked down and passed back and again brought into the upper path,these movements being effected by means of rotating screws which engagewith them, and a brush being provided whereby the accumulated fibre andnoil is removed from the faller pins or teeth as the said fallers dropfrom the forward end of their operative path.

The object of our invention is to prevent the brush from becoming foulby the lodgment therein of short fibre and dirt and to this end weprovide one of the fallers with means for dislodging such fibre and dirtin its passage past the brush.

In a suit-able arrangement according to the invention we provide alongthe front of one faller, in lieu of the first row of pins or teeth, athin strip, preferably of metal, having a serrated edge which projectsbeyond the front-edge of the faller, so that, as the latter is struckdown in the ordinary way, the serrated projecting edge of the said stripcombs through the bristles of the brush and clears the latter of anyshort fibre or dirt which may have lodged in them.

Figure 1 is a front view of a gill-box having the improvements appliedthereto, but with the fluted rollers omitted.

Figure 2 is a section on the line 22, Figure 1, but showing the twopairs of fluted rollers in position.

Figures 3, 4 and 5, are, respectively, a. front view, an end view and aplan view of one of the fallers detached.

a, 0; and b, b are, respectively, the front and back pairs of flutedrollers and a is the sliver of wool passing between, and gripped by, themembers of each pair and being drawn out in its passage owing to therollers a rotating at a higher speed than the rollers Z). V

d, d are the fallers arranged behind one anotherbetween the two pairs ofrollers a, Z)

and consisting of bars provided withpins 8 through which the wool sliverpasses on its way from the rollers .7) to the rollers a so that itsfibres are straightened out. The said fallers are supported at theirends on shelves 6 and caused to travel horizontally towards the frontrollers a by the engagement of their ends with rotating screws f, 7which are provided at their front ends with the cams or tappets g which,as each faller arrives at the front of the gill-box and is no longersupported by the shelves e knocks the said faller down out of engagementwith the sliver and on to the lower shelves h, 71, where its ends engagewith another pair of screws z, a which traverse them to the back of thegill-box. At this point the fallers are again raised to engage thesliver by other tappets, not shown, similar to the tappets g and carriedby the said lower screws 2.

j, j are the front conductors which guide the fallers when knocked downby the tappets 9 into engagement with the screws 2' V and 7c, 70 are theback conductors for guiding the fallers when knocked upwards intore-engagement with the screws f. Two pairs of these conductors areemployed, one at the front and one at the back of the gill-box, themembers of each pair bearing against the adjacent fallers at the ends ofthe latter. The base-pieces m m of the front and back conductors j, 70,respectively, are pivotally attached to the frame of the machine (notshown) by studs 9%. A rod m passes through enlarged holes in the saidbasepieces m m and has on it a collar m fixed by a set-screw m and atone end a cap m A tension spring Z surrounds the rod m and is fastenedat one end to the base-piece m and at the other end to the collar m thuscausing the said conductors to bear yieldingly against the fallersadjacent to them.

0 is the brush, preferably having short stifi bristles, shown attachedto the front conductors j, j which serves, as the fallers d are struckdown, to engage with the pins thereon and remove all collected fibrousmatter therefrom.

9 Figures 3, L and 5 is the strip of metal having a serrated edge, whichwe apply to one of the fallers after having removed the front row ofpins or teeth of the faller thereof and which serrated strip serves,during the passage of the said faller past the brush 0, to comb from thebristles thereof any fibre and dirt which have lodged there- 1n.

Claims: 1. In apparatus for drawing yarn, in combination with means formoving the sliver, a plurality of traveling fallers, and a brush locatedadjacent to the path of the fallers for cleaning the faller pins, andmeans carried by one of the fallers for engaging the brush and removingfibre or dirt therefrom.

2. In apparatus for drawing yarn, in combination With means for movingthe sliver, a plurality of traveling fallers, and a brush locatedadjacent to the path of the fallers for cleaning the faller pins, acleaning strip carried by one of the fallers, for engaging the brushduring the normal travel of the said fallers, and removing fibre or dirtfrom the brush.

3. In apparatus for drawing yarn, in combination with means for movingthe sliver, a plurality of traveling fallers, and a brush locatedadjacent to the path of the fallers for cleaning the faller pins, and abrush engaging strip projecting laterally from one of the fallers, andprovided with a serrated edge to engage the brush, and comb the bristlesthereof, to remove collected fibre or dirt therefrom.

WVILLIAM EWART THOMAS. GREENWOOD HEAP.

